EM73A89B Datasheet (ELAN Microelectronics Corp)

EM73A89B, 4-BIT MICRO-CONTROLLER

EM73A89B is an advanced single chip CMOS 4-bit micro-controller.

It contains 16K-byte ROM, 1012-nibble RAM, 4-bit ALU, 13-level subroutine nesting, 22-stage time base, two 12-bit timer/counters for the kernel function, and one high speed conter.

EM73A89B also equipped with 6 interrupt sources, 3~7 I

EM73A89B Features

* Operation voltage Clock source : 2.2V to 3.6V. : Dual clock system. Low-frequency oscillator is 32KHz. Crystal oscillator or RC oscillator by mask option and high-frequency oscillator is a built-in internal oscillator. Instruction set : 107 powerful instructions